Smith, H.S., & Compere, H. 1926 The establishment in California of Coccophagus modestus Silv. (Aphelinidae, Hymenoptera) with notes on its life-history.. University of California Publications in Entomology 4(3): 51-61.

Notes: This parasite attacks the black scale, Saissetia oleae, the most injurious of the coccid pests occurring in California.